package practice1_100;

public class Practice100 {
    public boolean isSameTree(TreeNode p, TreeNode q) {
        if(p==null&&q==null)return true;
        if (p==null&&q!=null)return false;
        if (p!=null&&q==null)return false;
        return p.val==q.val&&isSameTree(p.left,q.left)&&isSameTree(p.right,q.right);
    }

    public static void main(String[] args) {

    }
}
